bogaskie



June 12,1928.

F. BOGASKIE SAFETY ENVELOPE Fil ed May e, 1927 a Shet-Sheet 1 ATTORNEY June 12, 1928. 1,673,038

F. BOGASKIE SAFETY ENVELOPE Filed Ma 6, 1927 a Sheet5-Sheet 2 /4 75 Y /Z I INVENTOR fiznkflagwk/e BYW7M/37W I ATTORNEY June 12, 1928. 1,673,038

F. BOGASKIE v SAFETY ENVELOPE Filed May 6, 1927 a Shets-Sheet 4 mvzmon BY 5 Q ATTORNEY June 12, v 1 928.

F. BOGASKIE SAFETY ENVELOPE 8 Sheets-Sheet 5 H6. /5 dsk/ BY XM' 7? V ATTORNEY Filed May 6, 1927 F. BOGASKIE June: 12, 1928.

SAFETY ENVELOPE Filed May 1927 8 Sheets-Sheet 6 INVENTOR Rank 50 0.5/0? BY a ATTORNEY June 12, 1928. 1,673,038

FEBOGASKIE SAFETY ENVELOPE Filed May 6. 1927 a sheets-Sheet 7 INVENTOR fin/7A ask/e EQATTORNEY June 12,1928.

1,673,038 F; BOGASKIE SAFETY ENVELOPE Filed May 6, 1927 8 Sheets-Sheet 8 6f 3 49 e?" K67 ,67 66 4a 64 49' 6 F1622 J2 INVENTOR ATTORNEY Patented June 12, 1928.

PATENT OFFICE.

FRANK BOGASKIE, OF JOHNSTOWN, NEW YORK.

sAnE'rY nnvnnorn.

Application filed May 6,

My invention relates to envelopes or folders, and particularly to an envelope of the character known as safety envelope. The general object of my invention is to provide a device of this character which may be sealed in such a way that it is practically impossible to remove the contents without destroying the wrapper. Another object of my invention is to provide a device of this character which may be formed from a smgle blank, or which, if desired, may be made from separate blanks of extremely simple character and easily assembled into a unltary device.

With these objects in view my invention includes the novel features of construction and the novel combinations and arrangements of elements and features described below and illustrated in the accompanying drawings in which-,

Fig. 1 shows the preferred form of the principal bank;

Fig. 2 shows a separate secondary blank which is to be associated with the first blank;

Fig. 3 shows the main blank after the first fold is made;

Fig. 4 shows the secondary blank attached to the main blank after the first fold;

Fig. 5 illustrates how the small blank is thereafter folded;

Fig. 6 shows the next fold in the main blank and illustrates the completed enve e' 7 indicates thefirst sealing operation of the envelope;

Fig. 8 shows the completely sealed enve 9 is a distorted section of the sealed envelope in the plane 9-9 of Fig. 8;

Fig. 10 illustrates a single blank from which my envelope may be formed;

Fig. 11 illustrates the blank shown in Fig. 10 after several folding operations;

Fig. 12 illustrates the next folding operation Fig. 13 illustrates the completely formed 1927. Serial No. 189,398.

cutting of the single blank from which my envelope may be formed;

Fig. 18 shows the first folding operation;

Fig. 19 the second folding operation;

Fig. 20 the third folding operation;

Fig. 21 the fourth folding operation;

Fig. 22 shows the completed envelope; gig. 23 shows the first sealing operation; an

Fig. 24 shows the completely sealed envelope. I

Throughout the drawings, the sectioned portions represent areas of adhesive; dotted lines represent lines of fold; and solid lines represent edges or slits.

Referring particularly to Figs. 1, 2, 3, 4, 5, 6, 7, 8 and 9, my preferred envelope is formed from two separate blanks; 1 representing generally the main blank and 2, the small or secondary blank. The main blank comprises a body portion, 3, which forms the front of the envelope, laterally extending flaps, 4 and 5, respectively, which form the inner back of the envelope, a sealing flap, 6, and aflap, 7, which forms the outer back portion of the envelope.

In forming my envelope, the laterally extending flaps, 4 and 5, are first overfolded the body portion, 3, and sealed together as shown in Fig. 3. After the lateral flaps have been overfolded, the secondary blank, 2, is attached to the outside thereof by means of the adhesive, 8, and is thereafter riveted to the flaps, 4 and 5, by the rivets, 9, as shown in Fig. The secondary blank, 2, comprises a body portion, 10, laterally extending flaps, 12 and 13, and oppositely disposed flaps, 1 and 15. After the secondary blank is secured to the main blank, the flap, 15, is overfolded the body portion, 10, along the line. 16, the flap, 12, is then overfolded and sealed on the flap, 15. and the flap, 14, is finally overfolded the whole and sealed to form a long narrow pocket or envelope open at the end, 13.' Thenext step'in the formation of my envelope is to overfold the flap, 7, along the dotted line, 18, to the position shown in Fig. 6, where it is secured to V form the completed envelope. The portion, 69. of flap, 7, is folded over along the dotted line, 70, and affords a protection to the contents of the envelope. From a consideration of the foregoing it will be apparent i that my envelope has a back of double thickaeeje and that there is a page aar'row tube or pocket within this double back which is formed from the small blank, 2. This pocket is open at the end, 13.

In sealing my envelope after the contents outer side of. the pocket formed by the secenvelope appears as shown in Fig. 12. envelope isthen completed by folding or.

ondary' blank. lhese rivets are clinched on the inside, and it will be apparent that it is quite impossible to uncli-nch them from the exterior of the envelope. These rivets in connection with the rivets, 9, fasten all of the folded portions of the envelope together audit cannot be opened without tearing.

, Referring. to Figs. 10 to 15 inclusive, 1 have here shown how my complete envelope may be formed from a single unitary blank.

vThis blank is quite similar in its general contour to the blank shown in Fig. 1, and

comprises a body portion, 20, lateral flaps,

21 and 22, a sealing, flap, 28, and a flap, 24, which, in addition to forming the outer back of the envelope is also cut to form the pocket 1 or passage into which the riveter is inserted. The lateral flaps, 21and 22, may be provided with secondary flaps, 25 and .26, respectively,

to be folded within the envelope compartment to provide a protection for the contents. The main compartment is formed by overfolding the flaps, '21 and; 22, upon the body of the envelope and along the dotted lines, 27 and 28, respectively. The flap, 24, is then overfolded the lateral flaps along the dotted line, 29. After these operations the folded blank appears substantially as shown in Fig. 11, except that the portions, 30 and 31, of the flap, 24, are shown as downfolded over the portion, 34, and; along the dotted lines, 32 and 33, respectively. In forming the long narrow pocket, the portions,30, 31, and'35, are next together overfol'dedthe portions, 36 and 37, along the dotted line, 38, and the bottom of the pocket is. formed by thereafter overfolded and sealing the flap, 39. After these operations, Ithe he rolling the pocket, 40, overupon theportion,

41, about the dotted line 42, andthe portions, and 37, which lie together are pushed through the opening formed by tongue, 37, and brought up to the positions shown in Fig. .13. Rivets, 43, are, then insorted. through tongues, 44 and 45, and

clinched on the inside of the envelope compartinent and another rivet, 43, is passed through the overlying portions, 35 and 37,

the contiguous portions of the fiaps,21 and 22, and. clinched on the. inside of the envelope compartment. This structure in its essential details is substantially identical with my envelope shown in Fi 6 except that it is'forinedina slightly diil'erent way. After the contents. has been placed in the envelope compartment, the flap, 23, is sealed over the hack of the envelope as shown in Fig. 14 and the rivets, 46, are placed by means of a long, shank riveting instrument inserted tl'irough the opening, 71, in the pocket, and clinched within the pocket. The flap, 4?, is intended to .be sealed over. the opening in the pocket although it would be quite impossible to unclinch the rivets by an instrument inserted through this opening it it were not closed.

In other words instead of forming the secondary pocket from a portion of the flap, 52, in accordance with the description in respect of Figs. 10 to 15 inclusive, the pocket is formed from portions of the flaps, 50' and 51. r V

In forming the envelope from the'blank shown in Fig. 17 the flaps, .48 and 49, carrying flaps, 50 and 51, are overfolded the body, 53, of the envelope to the position shown in Fig. 18. The flaps, 5O and 51, which are then fastened together by means of the adhesive shown on the flap, 51, are folded along thedotted line, 52., and against the backs of the flaps, 48 and 49. In this position they appear as shown in 19, which is analogous to 1,1. The small pocket is then formed by successively rolling overtolding the portions, 72 and 73, along the dotted lines, 54 and 55, to the position shown in F 20, and then folding once more along the dotted line, 56, and'bringing the overlyingportions, 57 and 58, around through the opening left by tongue, 57, and up to the position shown in Fig. 21.. In forming the pocket, the tongues, 59 and 60,

are raised, and finally overliethe pocket,

compartment as shown in Fig. 22. This is my completed envelope.

After the contents has been placed in the envelope, the sealing flap, 65, is folded over the opening and secured to the back by means of the adhesive. Thereafter, a long shank riveting instrument is inserted through opening, 66, in the secondary pocket, and rivets, 67, are passed through the flap, 65, and clinched on the inside of the secondary pocket. The opening, 66, is then sealed by means of the flap, 68.

It will be apparent from the foregoing that envelopes embodying the essential features of my invention may be formed in several different ways and from a single unitary blank or from assembled blanks. In either case, it will be obvious that because of the limited accessibility to the places where the rivets are clinched it will be quite impossible to open the sealed envelope without cutting or tearing. All of the overfolded portions are not only adhesively secured together but also fastened by rivets which cannot be re moved without tearing the paper.

iVhile I have described my invention in its preferred forms and illustrated several clifferent methods of construction, it is to be understood that the words which I have used are words of description rather than of limi tation and that changes within the purview of the appended claims may be made without departing from the true scope and spirit of my invention in its broader aspects.

IVh-at I claim is 1.. In a safety envelope having over-folded portions forming the front and back of a main compartment, a main sealing flap therefor, and aflap overfolded upon the back of the main compartment, means lying between the back of the main compartment and said portions forming the main-compartment, a pocket within said envelope, and inaccessible except through a comparatively small opening provided for the insertion of a riveting instrument.

3. In a safety envelope, means forming a. main compartment, a main sealing flap therefor, and means, independent of the main compartment forming means, forming a pocket of limited accessibility lying beneath said flap when sealed; said pocket being provided with a comparatively small opening therein for the insertion of a riveting instrument.

4;. A safety envelope comprising front and back portions forming a main compartment, a flap adapted to close said compartment,

and means riveted to the back of said envelope and forming, independently thereof, a pocket adapted to lie beneath the main flap when sealed; said pocket being inaccessible except through a comparatively small opening provided for the insertion of the riveting instrument.

5. A safety envelope having a main sealing flap and provided with two independently walled compartments; one of said oompartments being the main compartment and the second of said compartments lying beneath the main flap when sealed and being comparatively narrow and inaccessible except through a comparatively small opening provided for the insertion of a riveting instrument.

6. In a safety envelope, means forming a main compartment, a main sealing flap therefor, and means forming a comparatively narrow tube lying beneath the zone covered by the main flap when sealed; the interior of said tube being inaccessible except through a comparatively small opening provided for the insertion of a riveting instrument.

7 In a safety envelope comprising means forming a main compartment and a sealing flap therefor, a comparatively narrow tube secured to the back of said compartment and adapted to lie beneath the zone covered by the flap when sealed; the interiorof said tube being inaccessible except through a small opening provided for the insertion of a riveting instrument.

FRANK BOGA SKIE. 

